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From: "B. Pym" <Nobody447095@here-nor-there.org>
Newsgroups: comp.lang.lisp
Subject: Re: SBCL complains where Lispwork does not: loop for i for j
Date: Wed, 18 Jun 2025 22:47:57 -0000 (UTC)
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>  JT> CL-USER 1 > (loop for i for j in '(a b c) collect (cons i j))
>  JT> => ((0 . A) (1 . B) (2 . C))
> 
> and, do you really like that code? is it readable?
> if I encounter such stuff, i'd yell "WTF??".
> 
>  JT> I found a way around it 'for i from 0'
> 
> as others have noted, canonic way is to use upfrom. for i upfrom 0.
> perfectly readable and makes sense for anybody, even if they do not know the
> language.

Let's see if we can make it shorter by using a Lispy language
instead of CL.

Gauche Scheme

(map cons (liota) '(a b c))
  ===>
((0 . a) (1 . b) (2 . c))